Smoke-consumer



(No Model.)

J. T. ELLIS.

SMOKE CONSUMER.

i No. 491,775. Patented Feb. 14, 1893.

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UNTTED STATES PAF-TENT` OFFICE..

JOHN T. ELLIS, OF TORONTO, CANADA, ASSIGNOR TO JOSEPH RUSE, OF SAME PLACE, AND JOHN M. CULLIS, OF BUFFALO, NEW YORK.

SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 491,77 5, dated February 14, 1893.

Application iiled June 6. 1892. Serial No. 435,680. (No model.)

To all whom t may concern.-

Be it known that I, J OHN THOMAS Ennis, of the city of Toronto,in the county of York, in the Province of Ontario, Canada, have invented a certain new and Improved Smoke- Consumer, of which the following is a specication.

The object of the invention is to provide an attachment to a steam boiler by which the smoke shall be effectually consumed before escaping through the smoke stack, and it consists, essentially, in the construction and arrangement of parts hereinafter more particularly explained and then definitely claimed.

Figure 1, is a perspective view of a steam boiler with the brick Work partially broken away to expose myimproved smoke consumer. Fig. 2, is an enlarged detail of the smoke consumer.

A, represents the grate located in the usual manner and B the ordinary bridge extending as usual to about four or ve inches of the boiler C. Immediately behind the bridge B, I place a supplemental bridge D, with a number of holes E, made through it.

F, is a fish-tail shaped mouth formed in the end of the steam pipe Gr, which extends from the dome II, or from any other suitable point in the boiler.

I, is a valve placed in the pipe G, the normal position of the valve being open.

J, is a pivoted lever, its short end extending over the spindle of the valve I, while its long end extends to the door K, of the furnace. On this door I pivot a tube L, partially lled with quick-silver, oil or some such material, the iiow of which can be readily controlled. The door K,has an opening through it protected by a series of shutters M, connected together as indicated by the bar N, and provided with a crank-handle O. The pivoted tube L, is connected to one of the shutters M, by the rod P.

In order to open the door, the crank handle O, is seized and drawn upon, which action opens the shutters and at the same time the rod P, raises the lower end of the tube L, carryng the opposite end of the said tube away from the long end of the lever J, which immediately falls so as to carry its opposite end away from the stem of the valve I, which opens sufficient quantity of oxygen and hyd regen to produce the necessary combustion to consume the smoke. Vhen sufficient fuel has been placed upon the fire, the door K,is closed and as the combined weight of the bar N, crankhandle O and rod P, are sufficient to commence the closing of the shutters M, the said shutters commence to close as soon as the door is shut and as their closing tilts the tube L, on its pivot, the quick-silver or other material contained in the said tube, will gradually flow to the opposite end of the tube, thus effectually closing the shutters and at the same time tilts the tube L, so that it will come in contact with the lever J, raising the said lever so as cause its other end to close the valve I. In this way the supply of steam is cut olf simultaneously with the cutting 0E of the extra supply of air.

On reference to Fig. 2, it will be observed that a fender Q, is formed on the inside back of the door K, immediately facing the shutters M, where this fender forms a space into which the cold air enters before it reaches the furnace, as it cannot escape therein until it reaches the top of the fender where it enters with the steam from the fish-tail shaped mouth E, thereby entering the furnace in a heated condition and supplying at the proper posi tion the oxygen necessary to produce combustion of the smoke. It will be noticed that these shutters, when opened, or partially opened, will direct the currents of air in thin sheets against the fender Q, in which condition it is more readily heated and is therefore more quickly in condition to act with the steam on the smoke. The supplemental bridge B, is made of brick and the holes E, are made suficiently large to prevent any stoppage of the ordinary draft. As it is in direct contact with ICO the lire,it soon becomes heated to a very high degree and thereby intensities the combustion of all particles of carbon which might otherwise escape through the smoke ilue. After sufficient fuel has been placed in the furnace and the tube has tilted so as to close the shutters M, the door remains closed until the next supply of fuel is t0 be entered, but in order to be in a position to supply the small quantity of fresh air into the furnace, I make the bottom shutter R, independent of Vthe other shutters, providing it With means by which it may be independently opened as indicated, the air thus admitted being heated -by coming in contact with the heated fender Q.

7What I claim as my invention isz- Y Y l. A furnace door, having an opening through it protected by an inwardly projectingfender and provided with a series of hinged shutters; substantially as and for the purpose specified.

2. Ak furnace door having an opening through it,protected by an inwardly projectin gfender and provided With a series of hinged shutters, attached together and connected to 4L. A steam pipe extending into a furnace, a valve controlling the passage of steam in said pipe and a lever controlling the movement of said valve, in combination With a pivoted tube support-ing one end of said. pivoted lever, an

, opening in the Wall of the furnace,a series of shutters for controlling the admission of air through said opening, and a connection between said pivoted tube and the shutters, substantially as described.

Toronto, May 27, 1892. y

JOHN T. ELLIS.

ln presence of- A. M. N EFF, J. EDW. MAYBEE. 

